SecOps · Comparison
MDR vs XDR: service vs technology
The cleanest way to remember it: XDR is what you buy; MDR is who runs it. XDR is a detection-and-response platform spanning endpoint, network, cloud, and identity. MDR is a service where a provider's analysts operate that kind of platform — XDR, EDR, or SIEM — on your behalf, 24/7. One is a product; the other is an outcome.
What is Managed Detection and Response?
Managed Detection and Response (MDR) is a service. A provider's SOC monitors your environment continuously, investigates alerts, hunts for threats, and takes or directs response. It supplies the people and process most teams can't staff around the clock.
MDR is tool-flexible: some providers deliver it on their own XDR, some on EDR plus a SIEM, some on your existing stack. The differentiator is the analysts and the response, not the specific platform.
What is Extended Detection and Response?
Extended Detection and Response (XDR) is a technology platform that correlates telemetry and automates response across multiple layers — endpoint, network, cloud, email, identity — in one integrated product.
XDR raises detection fidelity and speeds response, but it's still software: it needs people to configure it, triage what it surfaces, and make response decisions. Bought without a team to run it, an XDR can still leave alerts unattended.
Side by side
MDR vs XDR, compared
| MDR | XDR | |
|---|---|---|
| What it is | A managed service | A technology platform |
| People included | Yes — 24/7 SOC analysts | No — you operate it |
| Response | Analysts investigate & contain | Automated & guided actions; someone decides |
| Coverage | Whatever tools the service runs | Endpoint, network, cloud, email, identity |
| Runs on | XDR, EDR, and/or SIEM | Is the platform |
| Best for | Teams without a 24/7 SOC | Teams with staff to operate it |
| Outcome | Detection + response delivered | Detection + response capability |
Decision guide
When to choose each
Choose MDR when
- ▸You lack the staff to monitor and respond 24/7.
- ▸You want guaranteed investigation and response, not just tooling.
- ▸You'd rather buy the security outcome than operate a platform.
Choose XDR when
- ▸You have a SOC that can run and tune the platform.
- ▸You want to own the technology and keep response in-house.
- ▸You're standardizing detection across layers on one product.
XDR and MDR are complementary: XDR is often the engine an MDR service runs on. Buy XDR if you have the team to operate it; buy MDR if you want experts to operate XDR (or EDR/SIEM) for you. Many organizations adopt XDR and layer MDR on top so the platform is actually watched and acted on 24/7.
Not sure which you need?
intSignal provides MDR on a modern XDR/SIEM stack — the platform and the analysts, so detections get investigated and threats get contained around the clock.
Frequently asked questions
What's the difference between MDR and XDR?
XDR is a technology platform that correlates detection and response across endpoint, network, cloud, and identity. MDR is a service where analysts operate a detection-and-response platform (often XDR) for you, 24/7. XDR is what you buy; MDR is who runs it.
Does MDR use XDR?
Frequently. Many MDR services run on an XDR or EDR platform plus a SIEM. The platform provides the telemetry and automation; the MDR analysts provide the triage, threat hunting, and response.
Should I buy XDR or MDR?
If you have a SOC to operate the platform, XDR may be enough. If you can't staff 24/7 monitoring and response, MDR gives you the analysts and the outcome — often running an XDR under the hood — without hiring a team.
Can I have XDR without MDR?
Yes, if you have the people to run it. XDR is a product you can operate yourself. The risk is buying powerful tooling that no one watches after hours — which is exactly the gap MDR fills.